I'd keep it for a day or two just to accrue enough wealth for basic comfort (a small house at the edge of town so i can fit my projects and some service on my 20 year old car so it doesn't cough now and then), but then i'd pay handsomely for a top of the line computer for personal computing.

Then use the AI to make a compact seed of itself which could self replicate if necessary, preferably fitting on a few dozen GB at most if possible.

To spread it, i'd first buy an electric bike, as boring and icognito looking as possible. I'd take on a face mask (silly pandemics), a pair of sunglasses and a hoodie/beanie, then approach someone who looks like he needs money.
Give him €200 to go buy a SIM-card with unlimited connection for a month (you need to register with an ID for those around here), then give him €10K when he comes back with it, and go away on my bike.

I'd look for some place that preferably has 5G connection (good 4G would be sufficient though) which seems like it will be untouched for at least a week (some abandoned house close to a tower would be good enough), then leave a laptop connected to a hefty car battery, pumping the AI seed out via torrenting after having created a reddit account and put up the magnet links everywhere.
After a day or two, i'll check in on the magnet link through a couple of proxies to see the availability, in case it wouldn't have gained traction yet. Some time would be needed to not look like the first connected node.

If it has full availability on multiple nodes, the laptop gets abandoned.
If not, i go leave more batteries, buy another laptop and SIM card cash (the same way) and start the marketing campaign.