I have two sentences concerning the usage of the 2nd conditional with present tense verbs, and I'm concerned whether they convey what I want them to convey.
If I came over to your place tomorrow and saw that the front door is locked, I would never come to your house again.
If I came over to your place tomorrow and saw that the front door was locked, I would never come to your house again.
second sentence:
Would it be okay if I called you when I get home.
Would it be okay if I called you when I got home.
Are both the sentences in sentence 1 and 2 grammatically correct? Are there any differences in their meanings? Is it okay in these cases to not keep the tenses in harmony?