I met a man in his 30s on a bus and we talked for 3hrs, 2 weeks ago.. didn't swap numbers, it is weird if I ring his shop to ask him out?

I'm in my 30s, we talked a lot and said where we both work

I met a man in his 30s on a bus and we talked for 3hrs, 2 weeks ago.. didn't swap numbers, it is weird if I ring his shop to ask him out?
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