If you agree to go out with a friend, but then s/he never calls back with the details, how long do you have to give them before making other plans?

I had a friend text me last night asking my husband and me to come over for a BBQ at 5:30. He asked me to call him so I left a message saying that I was available, but my husband was out of town and asked him to call me. I couldn’t tell by the text if he was having a party or just inviting my husband and I over. Also, I don’t know where he lives and he didn’t give me the address. He never called. I’m in the process of moving, so my time is really precious to me. Around noon, I decided that because he didn’t call me back, I wasn’t going and would instead continue packing and cleaning. Was this wrong? He never called me back, so his bad, but if he had, would I have been wrong to say that I was no longer able to come?