Is it too late to text him?

So this really cute guy came into my work 2 nights ago and when he was checking out he asked for my number. I blushed and wrote it on his receipt. He texted me to about 5 minutes later saying to text him when I was out and I said okay. I got out of work at 1am and just wanted to go to bed so I refrained from texting him. I thought about texting him today but I had to work again so I didn't. Should I text him tomorrow? what should I say? have I waited too long?
Is it too late to text him?
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