Is it possible to use the business center in a Marriott hotel without staying at the hotel?

I'm going to be in Winston-Salem next week on a business trip. I have to take a flight that gets me in about 6 hours early for a meeting and wanted to find somewhere to throw down for a few hours to try to get some work done.

There's a Marriott right next door to where I have my meeting.

I'd be happy to pay a modest fee, but I don't know if its even something that Marriott permits its hotels to do at all.

Any guidance would be much appreciated.

Thanks!